On October 28, 2019 TG Therapeutics, Inc. (NASDAQ: TGTX), a biopharmaceutical company developing medicines for patients with B-cell mediated diseases, reported that the follicular lymphoma (FL) cohort of the UNITY-NHL Phase 2b pivotal trial evaluating single agent umbralisib, the Company’s novel, once daily, PI3K delta inhibitor, met the primary endpoint of overall response rate (ORR) as determined by Independent Review Committee (IRC) for all treated patients (n=118) who have received at least two prior lines of therapy including an anti-CD20 monoclonal antibody and an alkylating agent (Press release, TG Therapeutics, OCT 28, 2019, View Source [SID1234549909]). The results met the Company’s prespecified ORR target of 40-50%. Importantly, umbralisib monotherapy appeared to be well tolerated with a safety profile consistent with previous reports.

The Company plans to present the data at a future medical conference as well as discuss the data with the U.S. Food and Drug Administration (FDA).

Michael S. Weiss, Executive Chairman and Chief Executive Officer of TG Therapeutics stated, "We are extremely pleased to announce that the UNITY-NHL follicular lymphoma cohort evaluating umbralisib monotherapy met the primary endpoint of ORR. There are no fully approved drugs for patients with follicular lymphoma that have progressed following two or more prior lines of therapy and we are excited by the potential to offer a novel treatment for this underserved population. We look forward to sharing these results with the FDA and discussing submission opportunities for accelerated approval of umbralisib in follicular lymphoma." Mr. Weiss continued, "These are very exciting times for TG and with two additional major events targeted to occur over the next several months, including commencing our first NDA filing for umbralisib in patients with relapsed/refractory marginal zone lymphoma and results from our UNITY-CLL Phase 3 trial, we expect that excitement to continue. Taken together, we see 2020 shaping up as a pivotal year where we transition from a development-stage company into a fully-integrated development and commercial organization."

ABOUT THE UNITY-NHL PHASE 2b STUDY—FOLLICULAR LYMPHOMA COHORT

The multicenter, open-label, UNITY-NHL Phase 2b study – Follicular Lymphoma cohort was designed to evaluate the safety and efficacy of single agent umbralisib, the Company’s novel, once daily, PI3K delta inhibitor, in patients with FL who have received at least two prior lines of therapy, including an anti-CD20 regimen and an alkylating agent. The primary endpoint is overall response rate (ORR) as determined by Independent Review Committee (IRC) assessment. Secondary endpoints include safety, duration of response, and progression-free survival (PFS).

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The positive ORR outcome announced today was based on 118 FL patients that received at least one dose of umbralisib and who previously had received at least two prior lines of therapy, including an anti-CD20 regimen and an alkylating agent.

CONFERENCE CALL INFORMATION

The Company will host a conference call today, Monday, October 28, 2019 at 8:30 AM ET to discuss the UNITY-NHL FL news. In order to participate in the conference call, please call 1-877-407-8029 (U.S.), 1-201-689-8029 (outside the U.S.), Conference Title: TG Therapeutics Update Call.

A live audio webcast of this call will be available on the Events page, located within the Investors & Media section, of the Company’s website at www.tgtherapeutics.com. An audio recording of the conference call will also be available for replay at www.tgtherapeutics.com, for a period of 30 days after the call.

ABOUT FOLLICULAR LYMPHOMA

Follicular lymphoma (FL) is typically a slow-growing or indolent form of non-Hodgkin lymphoma (NHL) that arises from B-lymphocytes, making it a B-cell lymphoma. Follicular lymphoma is usually not considered to be curable, and is a chronic disease. Patients can live for many years with this form of lymphoma. With an annual incidence in the United States of approximately 15,000 newly diagnosed patients1, FL is the most common indolent lymphoma accounting for approximately 20 percent of all NHL cases2.